GE IS200TRPAH1A – Terminal Board for Mark VI Trip/Relay Interfacing

The GE IS200TRPAH1A is a TRPA-series terminal board designed for GE Mark VI turbine control cabinets. In most cases it’s used to land field wiring and interface trip/relay circuits—think solenoids, contactors, permissives, and other discrete protection I/O—back to the controller. From my experience, teams choose the TRPA when they want a clean, reliable way to marshal discrete protection signals without redesigning a cabinet layout.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days
• Lead time: Typically 1 week for in‑stock units; no more than one month at the latest
• Payment: 50% advance payment; full payment before delivery
• Express options: FedEx, UPS, DHL

Key Features

• Mark VI compatibility – Designed for GE Mark VI control panels, enabling straightforward swap‑in during maintenance.
• Trip/relay signal marshalling – Routes discrete protection and trip paths between field devices and the controller I/O, keeping wiring organized and testable.
• Robust terminal layout – Barrier‑style terminals (typical for this series) help with clear labeling and secure terminations during outages.
• Ribbon/edge connectivity to I/O card – Board‑to‑board connectors minimize loose wiring inside the cabinet and speed up replacement.
• H1A hardware revision – The H1A build is widely used in installed bases, making spare strategy and interchangeability simpler.
• Service-friendly design – Technicians can ring out trip loops and perform bump tests without disturbing adjacent circuits, which is particularly useful on tight outage windows.

Technical Specifications

Related or Supporting Products

• IS200TREGH1B – Emergency trip terminal board often used in redundant trip architectures; higher emphasis on safe‑shutdown paths.
• IS200TRPGH1B – Trip output board variant; typically handles primary trip output routing to field devices.
• IS200TRLYH1B – Relay output terminal board for general discrete outputs where contact expansion is needed.
• IS200STCIH2A – Contact input terminal board; complements TRPA by collecting dry contact status from the field.

You might notice that plants mix TRPA with TREG/TRPG to separate protection, permissive, and general trip duties. It keeps diagnostics straightforward and simplifies loop checks.

Installation & Maintenance

• Cabinet environment: Install in a clean, dry Mark VI panel. Provide ventilation consistent with the controller’s cabinet spec; avoid heat sources on the backplate.
• Mounting & wiring: Use the designated standoffs and hardware. Torque terminal screws per site standard. Use ferruled conductors for multi‑strand wires where possible.
• Segregation: Keep trip/solenoid wiring away from high‑noise sources. Route 24 VDC and higher‑voltage lines separately to reduce induced faults.
• Safety: De‑energize all circuits, lockout/tagout, and verify stored energy on trip solenoids before handling wiring.
• Commissioning checks: Perform continuity checks, point‑to‑point verification, and simulate trip outputs. Document terminal labels so outage crews can move faster next time.
• Routine care: Periodically re‑torque terminals, inspect for discoloration or loose strands, and clean dust with non‑static methods. Firmware updates are controller‑side; this board is passive.
• Spares strategy: Keeping at least one on the shelf is common practice; it appears to minimize trip system MTTR during unplanned maintenance.

Quality & Certifications

• Manufacturing standards: Built for GE Mark VI systems that are typically supplied under CE/UL compliant panels.
• Material compliance: Later‑revision boards in this family are often RoHS‑aligned; exact compliance can depend on date code and revision.
• Warranty: 365‑day warranty coverage on this unit.
• Testing & packaging: Units are function‑checked where applicable, ESD‑protected, and packed for express transit.